<div class="loader">
  <span></span>
</div>

<style>
/* From Uiverse.io by bek_uz_time  - Tags: red, loader, css */
.loader {
  position: relative;
  width: 150px;
  height: 150px;
  background: transparent;
  border-radius: 30%;
  box-shadow: 25px 25px 75px rgba(0, 0, 0, 1.55);
  border: 1px solid #ecc904;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.loader::before {
  content: "";
  position: absolute;
  inset: 20px;
  background: transparent;
  border: 1px dashed #b0a1a1;
  border-radius: 30%;
  box-shadow: inset -5px -5px 25px rgba(0, 10, 10, 15),
    inset 5px 5px 35px rgba(10, 0, 10, 2);
}

.loader::after {
  content: "";
  position: absolute;
  width: 50px;
  height: 50px;
  border-radius: 30%;
  border: 1px dashed #d6d3d3;
  box-shadow: inset -5px -5px 25px rgba(10, 10, 10, 2.25),
    inset 5px 5px 35px rgba(10, 10, 10, 10.45);
}

.loader span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 50%;
  height: 100%;
  background: transparent;
  transform-origin: top left;
  animation: radar81 1s linear infinite;
  border-top: 1px dashed #c1bdbd;
}

.loader span::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #f20303;
  /* pink */
  transform-origin: top left;
  transform: rotate(-55deg);
  filter: blur(30px) drop-shadow(20px 20px 20px #ff0241);
  /* pink */
}

@keyframes radar81 {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

</style>
    